PHILADELPHIA — Despite misgivings expressed by one of his players, Philadelphia Eagles coach Chip Kelly is not concerned about giving away the recipe of his offense's secret sauce later this month when his team conducts joint practices with the New England Patriots in Foxborough, Mass.

Eagles cornerback Cary Williams said Friday, "I just do not like the Patriots," while referring to the team infamously implicated by the Spygate scandal seven years ago as "cheaters."

Kelly brushed aside those comments Sunday.

"I appreciate Cary's input, but I think the value that you get for every single player and every single coach in terms of what we're doing — to get a chance to go against another scheme and another team — I think it's really beneficial," said Kelly, who hosted the Patriots for intersquad training camp practices in Philadelphia in 2013.

New England coach Bill Belichick would occasionally host Kelly at Patriots practices in the past and pick his brain when he was still at the University of Oregon and developing his creative, up-tempo offense, facets of which have since been widely emulated in the NFL.

Though Kelly concedes the Eagles will use fewer of their myriad signals and will huddle more frequently when they practice in New England Aug. 12-14 leading up to a Week 2 preseason game Aug. 15, he's not stressing over the Patriots deciphering his system and suggested such worries were "overblown."

"I don't think they're getting anything," Kelly said. "Obviously people have all of our preseason games, and games and playoff games from last year (on film). They're gonna see what we do.

"But we're always evolving."

The Eagles and Patriots will not meet in the regular season this year. However both clubs are coming off division championships and are widely viewed as contenders likely to return to the playoffs.

So what if, by chance, they collided in Super Bowl XLIX next February?

"That would be the 20th game of the year plus four preseason games, and then you're going back and looking at practice tape. Sometimes then there's analysis by paralysis," said Kelly when asked about the ultimate scenario.

"It would be a great situation that we get a chance to play them in the Super Bowl. (If) they're going through practice tape and get a chance to see one play that we ran once on a Tuesday in August that we bring out in the third quarter with 1:32 on the clock — and they're prepared for it — then God bless 'em."

QB Russell Wilson watches from the Seahawks practice facility in Renton, Wash., as a Marines swimmer jumps from a helicopter into Lake Washington during a military demonstration July 31. (Photo: Ted S. Warren, AP)

Kansas City Chiefs running backs coach Eric Bieniemy gives instruction to Jamaal Charles during a NFL training camp, Wednesday, July 30, 2014 on the Missouri Western State University campus in St. Joseph. Mo. (Photo: Todd Weddle, AP)